Handspring Treo 600 - Manual (Page 14)

Turning Treo on and off
You can use the Palm OS features of your Treo independently of the
wireless features and applications. Therefore, the screen and Wireless Mode
are designed to be turned off and on separately.
Turning the screen on and off
1. Press the Screen button to turn on the screen.
2. Briefly press the Screen button to turn off the screen.
Turning Wireless Mode on and off
Wireless Mode allows your Treo to connect to a mobile network so that you
can make and receive phone calls and use other wireless services.
1. Press and hold the Wireless Mode button
to turn on Wireless Mode.
You will hear a series of ascending tones. When Wireless Mode is on,
your Treo connects to a mobile network, and you can use the phone and
Internet features (if supported by the local network).
2. Press and hold the Wireless Mode button again to turn off Wireless
Mode. You will hear a series of descending tones. When Wireless Mode
is off, your Treo does not have a connection to any mobile network. You
can still use the organizer and other Palm OS features. This is ideal for
airplane flights and for maximizing battery life.
14 :: Turning Treo on and off
Treo includes a keyboard
backlight for nighttime use.
The keyboard backlight
activates automatically when
the screen turns on, but
shuts off if the keyboard is
not in use. When the screen
is on, press Option then the
P key to manually activate
the keyboard backlight.